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E.v M. INGGLDSBY.

ELEVATOR.

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UNITED STATES PATENT OFFICE.

EDWARD M. INGOLDSBY, OF NEV YORK, N. Y.

ELEVATOR.

SPECIFICATION forming part of Letters Patent No. 328,311, dated October13, 1885,

Application tiled July 30, 1885.

To all whom it may concern.'

Be it known that I, EDWARD M. lNGoLDsBY, of New York, in the county ofNew York and State of New York, have invented a new and usefulImprovement in Elevators, of which the following is a speciiication,reference being had to the annexed drawings, forming a part thereof, inwhich- Figure l is a central vertical section taken on line a: x in Fig.4. Fig. 2 is a central vertical section also taken on line x x in Fig.4, showing the safety attachment in operation. Fig. 3 is a horizontalsection taken on line y y in Fig. l. Fig. 4 is a horizontal sectiontaken on line z z in Fig. 1, and Fig. 5 is a detail view of a modiiiedform of the safety device.

The object of my invention is to construct an elevator having a safetyappliance arranged to stop the elevator at any point in its excursion upor down the elevatorshaft in case of the breakage of the cable or ropeemployed to lift and sustain the elevator-car.

It also consists in the combination,with the elevator andelevator-shaft, of a series of doors of varying size and series ofcasings arranged on a level with the different floors through which theelevator passes, and adapted to receive the doors carried by theelevator-car as the car descends, the series of doors and casings beingarranged relative to each other, so that the larger door carried by thecar will be left in the casing belonging to the upper floor of thebuilding, and the next smaller door will pass through the larger casingand be left in the casing of the next lower iloor, and so on throughoutthe entire series of casings, the elevator leaving one door in eachcasing on its descent.

In carrying out my invention I erect in the elevator Well or shaft aframe, A, composed of corner posts, A', and cross-bars a, attached toopposite sides of the frame at lsmall distances from each other andadapted to receive the ends of safety-catch levers presently to bedescribed.

In the frame A, opposite the several floors ofthe building in which theelevator is placed, and 0n a level with the said floors, are placedframes B, provided with a rabbet or recess,

5o g, for receiving the doors E E E, te., carred by the elevator-car,the door E being Serial No. 173,033. (No model.)

larger than the door E and adapted to the upper frame, B, in theelevator-shaft, the door E being larger than the door E and adapted tobe received by the lower frame, B', as the elevator-car descends.

Ihe elevatorcar B is of ordinary construction, except that its top iselevated above the safety devices, and is provided with guidepins f,which are received in holes in the doors E E E, &c., as the elevator inits upward course takes the several doors from their frames B.

In the center of the car B, at the top, is se` cured aT-headed standard,C, provided with a vertical central slot, Z.

Surrounding the standard C, below its head, is a rectangular plate, I,which is capable of sliding upon the standard C, and a link, J, passesover the head of the standard C and underneath the plate I throughthe'slot Z in the said standard. The link J is connected with a wirerope, F, which passes upward through apertures in the doors E El FI, &c.Y

and over the sheave G, journaled at the top of the elevator-shaft,thence downward to the counterbalancing-weight H. The ropeF may also beconnected with the hoisting mechanism of the elevator.

In opposite sides of the elevator-car, and near the corners thereof, arepivoted four bent levers, D, on the pins e at or near the top of thecar. The short arms of these levers D are bent inward toward the centerof the car, and are provided with weights d, which are connected bylinks 7a with the corners of the plate I. rlhe lower and longer arms,D', ofthe levers D extend downward below the bottom of the elevator-carB, and extend outward at right angles, the free ends bending toward thesides of the elevatorshaft, in which are secured the horizontal bars aa.

In the normal operation of the elevator the rope F in pulling up thelink J brings the plate I into contact with the head of the standard C,and the car is raised and lowered with the link and the plate I in thisposition, the plate I thereby holding up the levers D and retaining thebent ends of the longer arms D of the said levers underneath the car;but in case of the breakage of the rope F, the link J and plate I beingreleased, the weighted ends oftheleversD are liberated, their weights ddrop, and the longer arms D ofthe said levers are thrown outward, andtheir bent ends are brought into engagement with the bars a a at thesides of the frame A, thereby arresting the ear and holding it untilreleased. IIhe bent ends of the longer arms of the levers D, when thrownoutward in the manner just described, are brought into contact with thelower timbers of the car-frame, thus taking the strain of the stoppingof the car from the pivots e of the levers.

It is obvious that I may employ a spring, d, to operate the levers D,instead of the weights d, as shown in Fig. 5, the spring d beingarranged to press the bent end of the longer arm D of the lever Doutward when the lever is released by the breaking of the elevator-rope.

By providing a series of movable doors, as described, when theelevator-car is at the bottom of the shaft communication through theshaft is entirely shut off, so that in case of fire communication fromone floor to another is shut off by said doors, so that the lire iseffectually prevented from being communicated from one floor to anotherthrough the elevatorshaft, and by means of my improved safetylever theelevator-ear will be prevented from.

dropping more than a few inches in ease of a breakage or giving away ofthe elevator-rope.

I am aware that it is not new to provide elevators with doors forclosing the elevator-well at the different floors as the elevator rises;therefore I make no claim to that construction.

I-Iaving thus described my invention, what I claim as new, and desire tosecure by Iletters Patent, is

l. The combination, with an elevator-shaft provided with horizontal barsa a on the opposite sides thereof, of the car b, provided with weightedlevers D, held normally out of contact with the bars a by theelevator-rope, but arranged to engage the bars a in case of a breakageof the elevator-rope, substantially as herein specified.

2. The combination,with the earB, provided with a central slottedstandard, C, of the apertures, plate I, fitted to slide upon the standard, weighted levers D, links k, connecting the said levers with theplate I, and an elevatorshaft provided on opposite sides with horizontalbars a, as herein specified.

EDWARD M. INGOLDSBY.

Vitnesses:

Gno. M. HOPKINS, H. C. HAGEN.

